/// <summary>
/// Draws content on a page using colors created from a separation colorspace.
/// </summary>
/// <param name="page">The page to draw to.</param>
private static void DrawSeparationColorSpace(PDFPage page)
{
PDFRgbColor black = new PDFRgbColor(0, 0, 0);
PDFBrush blackBrush = new PDFBrush(black);
//PDF4NET v5: PDFFont font = new PDFFont(PDFFontFace.Helvetica, 16);
PDFStandardFont font = new PDFStandardFont(PDFStandardFontFace.Helvetica, 16);
//PDF4NET v5: page.Canvas.DrawText("Separation colorspace", font, null, blackBrush, 50, 50);
page.Canvas.DrawString("Separation colorspace", font, blackBrush, 50, 50);
//PDF4NET v5: PDFType2Function tintTransform = new PDFType2Function();
PDFExponentialFunction tintTransform = new PDFExponentialFunction();
tintTransform.C0 = new double[] { 0, 0, 0, 0 };
tintTransform.C1 = new double[] { 0, 0.53f, 1, 0 };
tintTransform.Exponent = 1;
tintTransform.Domain = new double[] { 0, 1 };
tintTransform.Range = new double[] { 0, 1, 0, 1, 0, 1, 0, 1 };
PDFSeparationColorSpace separationCS = new PDFSeparationColorSpace();
separationCS.Colorant = "PANTONE Orange 021 C";
separationCS.TintTransform = tintTransform;
PDFSeparationColor orange = new PDFSeparationColor(separationCS);
orange.Tint = 0.9;
//PDF4NET v5: tintTransform = new PDFType2Function();
tintTransform = new PDFExponentialFunction();
tintTransform.C0 = new double[] { 0, 0, 0, 0 };
tintTransform.C1 = new double[] { 0, 0.75f, 0.9f, 0 };
tintTransform.Exponent = 1;
tintTransform.Domain = new double[] { 0, 1 };
tintTransform.Range = new double[] { 0, 1, 0, 1, 0, 1, 0, 1 };
separationCS = new PDFSeparationColorSpace();
separationCS.Colorant = "PANTONE Warm Red C";
separationCS.TintTransform = tintTransform;
PDFSeparationColor warmRed = new PDFSeparationColor(separationCS);
warmRed.Tint = 0.4;
PDFBrush orangeBrush = new PDFBrush(orange);
PDFPen warmRedPen = new PDFPen(warmRed, 5);
page.Canvas.DrawRoundRectangle(warmRedPen, orangeBrush, 50, 100, 400, 150, 20, 20);
}
private static void DrawShadings(PDFPage page, PDFFont titleFont, PDFFont sectionFont)
{
PDFBrush brush = new PDFBrush();
PDFPen blackPen = new PDFPen(PDFRgbColor.Black, 1);
PDFRgbColor randomPenColor = new PDFRgbColor();
PDFPen randomPen = new PDFPen(randomPenColor, 1);
PDFRgbColor randomBrushColor = new PDFRgbColor();
PDFBrush randomBrush = new PDFBrush(randomBrushColor);
page.Canvas.DrawString("Shadings", titleFont, brush, 20, 50);
page.Canvas.DrawString("Horizontal", sectionFont, brush, 25, 70);
PDFAxialShading horizontalShading = new PDFAxialShading();
horizontalShading.StartColor = new PDFRgbColor(255, 0, 0);
horizontalShading.EndColor = new PDFRgbColor(0, 0, 255);
horizontalShading.StartPoint = new PDFPoint(25, 90);
horizontalShading.EndPoint = new PDFPoint(175, 90);
// Clip the shading to desired area.
PDFPath hsArea = new PDFPath();
hsArea.AddRectangle(25, 90, 150, 150);
page.Canvas.SaveGraphicsState();
page.Canvas.SetClip(hsArea);
page.Canvas.DrawShading(horizontalShading);
page.Canvas.RestoreGraphicsState();
page.Canvas.DrawString("Vertical", sectionFont, brush, 225, 70);
PDFAxialShading verticalShading = new PDFAxialShading();
verticalShading.StartColor = new PDFRgbColor(255, 0, 0);
verticalShading.EndColor = new PDFRgbColor(0, 0, 255);
verticalShading.StartPoint = new PDFPoint(225, 90);
verticalShading.EndPoint = new PDFPoint(225, 240);
// Clip the shading to desired area.
PDFPath vsArea = new PDFPath();
vsArea.AddRectangle(225, 90, 150, 150);
page.Canvas.SaveGraphicsState();
page.Canvas.SetClip(vsArea);
page.Canvas.DrawShading(verticalShading);
page.Canvas.RestoreGraphicsState();
page.Canvas.DrawString("Diagonal", sectionFont, brush, 425, 70);
PDFAxialShading diagonalShading = new PDFAxialShading();
diagonalShading.StartColor = new PDFRgbColor(255, 0, 0);
diagonalShading.EndColor = new PDFRgbColor(0, 0, 255);
diagonalShading.StartPoint = new PDFPoint(425, 90);
diagonalShading.EndPoint = new PDFPoint(575, 240);
// Clip the shading to desired area.
PDFPath dsArea = new PDFPath();
dsArea.AddRectangle(425, 90, 150, 150);
page.Canvas.SaveGraphicsState();
page.Canvas.SetClip(dsArea);
page.Canvas.DrawShading(diagonalShading);
page.Canvas.RestoreGraphicsState();
page.Canvas.DrawString("Extended shading", sectionFont, brush, 25, 260);
PDFAxialShading extendedShading = new PDFAxialShading();
extendedShading.StartColor = new PDFRgbColor(255, 0, 0);
extendedShading.EndColor = new PDFRgbColor(0, 0, 255);
extendedShading.StartPoint = new PDFPoint(225, 280);
extendedShading.EndPoint = new PDFPoint(375, 280);
extendedShading.ExtendStart = true;
extendedShading.ExtendEnd = true;
// Clip the shading to desired area.
PDFPath esArea = new PDFPath();
esArea.AddRectangle(25, 280, 550, 30);
page.Canvas.SaveGraphicsState();
page.Canvas.SetClip(esArea);
page.Canvas.DrawShading(extendedShading);
page.Canvas.RestoreGraphicsState();
page.Canvas.DrawPath(blackPen, esArea);
page.Canvas.DrawString("Limited shading", sectionFont, brush, 25, 330);
PDFAxialShading limitedShading = new PDFAxialShading();
limitedShading.StartColor = new PDFRgbColor(255, 0, 0);
limitedShading.EndColor = new PDFRgbColor(0, 0, 255);
limitedShading.StartPoint = new PDFPoint(225, 350);
limitedShading.EndPoint = new PDFPoint(375, 350);
limitedShading.ExtendStart = false;
limitedShading.ExtendEnd = false;
// Clip the shading to desired area.
PDFPath lsArea = new PDFPath();
lsArea.AddRectangle(25, 350, 550, 30);
page.Canvas.SaveGraphicsState();
page.Canvas.SetClip(lsArea);
page.Canvas.DrawShading(limitedShading);
page.Canvas.RestoreGraphicsState();
page.Canvas.DrawPath(blackPen, lsArea);
page.Canvas.DrawString("Multi-stop shading", sectionFont, brush, 25, 400);
// Multi-stop shadings use a stitching function to combine the functions that define each gradient part.
// Function for red to blue shading.
PDFExponentialFunction redToBlueFunc = new PDFExponentialFunction();
// Linear function
redToBlueFunc.Exponent = 1;
redToBlueFunc.Domain = new double[] { 0, 1 };
// Red color for start
redToBlueFunc.C0 = new double[] { 1, 0, 0 };
// Blue color for start
redToBlueFunc.C1 = new double[] { 0, 0, 1 };
// Function for blue to green shading.
PDFExponentialFunction blueToGreenFunc = new PDFExponentialFunction();
// Linear function
blueToGreenFunc.Exponent = 1;
blueToGreenFunc.Domain = new double[] { 0, 1 };
// Blue color for start
blueToGreenFunc.C0 = new double[] { 0, 0, 1 };
// Green color for start
blueToGreenFunc.C1 = new double[] { 0, 1, 0 };
//Stitching function for the shading.
PDFStitchingFunction shadingFunction = new PDFStitchingFunction();
shadingFunction.Functions.Add(redToBlueFunc);
shadingFunction.Functions.Add(blueToGreenFunc);
shadingFunction.Domain = new double[] { 0, 1 };
shadingFunction.Encode = new double[] { 0, 1, 0, 1 };
// Entire shading goes from 0 to 1 (100%).
// We set the first shading (red->blue) to cover 30% (0 - 0.3) and
// the second shading to cover 70% (0.3 - 1).
shadingFunction.Bounds = new double[] { 0.3 };
// The multistop shading
PDFAxialShading multiStopShading = new PDFAxialShading();
multiStopShading.StartPoint = new PDFPoint(25, 420);
multiStopShading.EndPoint = new PDFPoint(575, 420);
// The colorspace must match the colors specified in C0 & C1
multiStopShading.ColorSpace = new PDFRgbColorSpace();
multiStopShading.Function = shadingFunction;
// Clip the shading to desired area.
PDFPath mssArea = new PDFPath();
mssArea.AddRectangle(25, 420, 550, 30);
page.Canvas.SaveGraphicsState();
page.Canvas.SetClip(mssArea);
page.Canvas.DrawShading(multiStopShading);
page.Canvas.RestoreGraphicsState();
page.Canvas.DrawPath(blackPen, lsArea);
page.Canvas.DrawString("Radial shading", sectionFont, brush, 25, 470);
PDFRadialShading rs1 = new PDFRadialShading();
rs1.StartColor = new PDFRgbColor(0, 255, 0);
rs1.EndColor = new PDFRgbColor(255, 0, 255);
rs1.StartCircleCenter = new PDFPoint(50, 500);
rs1.StartCircleRadius = 10;
rs1.EndCircleCenter = new PDFPoint(500, 570);
rs1.EndCircleRadius = 100;
page.Canvas.DrawShading(rs1);
PDFRadialShading rs2 = new PDFRadialShading();
rs2.StartColor = new PDFRgbColor(0, 255, 0);
rs2.EndColor = new PDFRgbColor(255, 0, 255);
rs2.StartCircleCenter = new PDFPoint(80, 600);
rs2.StartCircleRadius = 10;
rs2.EndCircleCenter = new PDFPoint(110, 690);
rs2.EndCircleRadius = 100;
page.Canvas.DrawShading(rs2);
page.Canvas.CompressAndClose();
}
private static void DrawColorsAndColorSpaces(PDFPage page, PDFFont titleFont, PDFFont sectionFont, Stream iccStream)
{
PDFBrush brush = new PDFBrush();
page.Canvas.DrawString("Colors and colorspaces", titleFont, brush, 20, 50);
page.Canvas.DrawString("DeviceRGB", sectionFont, brush, 20, 70);
PDFPen rgbPen = new PDFPen(PDFRgbColor.DarkRed, 4);
PDFBrush rgbBrush = new PDFBrush(PDFRgbColor.LightGoldenrodYellow);
page.Canvas.DrawRectangle(rgbPen, rgbBrush, 20, 85, 250, 100);
page.Canvas.DrawString("DeviceCMYK", sectionFont, brush, 340, 70);
PDFPen cmykPen = new PDFPen(new PDFCmykColor(1, 0.5, 0, 0.1), 4);
PDFBrush cmykBrush = new PDFBrush(new PDFCmykColor(0, 0.5, 0.43, 0));
page.Canvas.DrawRectangle(cmykPen, cmykBrush, 340, 85, 250, 100);
page.Canvas.DrawString("DeviceGray", sectionFont, brush, 20, 200);
PDFPen grayPen = new PDFPen(new PDFGrayColor(0.1), 4);
PDFBrush grayBrush = new PDFBrush(new PDFGrayColor(0.75));
page.Canvas.DrawRectangle(grayPen, grayBrush, 20, 215, 250, 100);
page.Canvas.DrawString("Indexed", sectionFont, brush, 340, 200);
PDFIndexedColorSpace indexedColorSpace = new PDFIndexedColorSpace();
indexedColorSpace.ColorCount = 2;
indexedColorSpace.BaseColorSpace = new PDFRgbColorSpace();
indexedColorSpace.ColorTable = new byte[] { 192, 0, 0, 0, 0, 128 };
PDFIndexedColor indexedColor0 = new PDFIndexedColor(indexedColorSpace);
indexedColor0.ColorIndex = 0;
PDFIndexedColor indexedColor1 = new PDFIndexedColor(indexedColorSpace);
indexedColor1.ColorIndex = 1;
PDFPen indexedPen = new PDFPen(indexedColor0, 4);
PDFBrush indexedBrush = new PDFBrush(indexedColor1);
page.Canvas.DrawRectangle(indexedPen, indexedBrush, 340, 215, 250, 100);
page.Canvas.DrawString("CalGray", sectionFont, brush, 20, 330);
PDFCalGrayColorSpace calGrayColorSpace = new PDFCalGrayColorSpace();
PDFCalGrayColor calGrayColor1 = new PDFCalGrayColor(calGrayColorSpace);
calGrayColor1.Gray = 0.6;
PDFCalGrayColor calGrayColor2 = new PDFCalGrayColor(calGrayColorSpace);
calGrayColor2.Gray = 0.2;
PDFPen calGrayPen = new PDFPen(calGrayColor1, 4);
PDFBrush calGrayBrush = new PDFBrush(calGrayColor2);
page.Canvas.DrawRectangle(calGrayPen, calGrayBrush, 20, 345, 250, 100);
page.Canvas.DrawString("CalRGB", sectionFont, brush, 340, 330);
PDFCalRgbColorSpace calRgbColorSpace = new PDFCalRgbColorSpace();
PDFCalRgbColor calRgbColor1 = new PDFCalRgbColor(calRgbColorSpace);
calRgbColor1.Red = 0.1;
calRgbColor1.Green = 0.5;
calRgbColor1.Blue = 0.25;
PDFCalRgbColor calRgbColor2 = new PDFCalRgbColor(calRgbColorSpace);
calRgbColor2.Red = 0.6;
calRgbColor2.Green = 0.1;
calRgbColor2.Blue = 0.9;
PDFPen calRgbPen = new PDFPen(calRgbColor1, 4);
PDFBrush calRgbBrush = new PDFBrush(calRgbColor2);
page.Canvas.DrawRectangle(calRgbPen, calRgbBrush, 340, 345, 250, 100);
page.Canvas.DrawString("L*a*b", sectionFont, brush, 20, 460);
PDFLabColorSpace labColorSpace = new PDFLabColorSpace();
PDFLabColor labColor1 = new PDFLabColor(labColorSpace);
labColor1.L = 90;
labColor1.A = -40;
labColor1.B = 120;
PDFLabColor labColor2 = new PDFLabColor(labColorSpace);
labColor2.L = 45;
labColor2.A = 90;
labColor2.B = -34;
PDFPen labPen = new PDFPen(labColor1, 4);
PDFBrush labBrush = new PDFBrush(labColor2);
page.Canvas.DrawRectangle(labPen, labBrush, 20, 475, 250, 100);
page.Canvas.DrawString("Icc", sectionFont, brush, 340, 460);
PDFIccColorSpace iccColorSpace = new PDFIccColorSpace();
byte[] iccData = new byte[iccStream.Length];
iccStream.Read(iccData, 0, iccData.Length);
iccColorSpace.IccProfile = iccData;
iccColorSpace.AlternateColorSpace = new PDFRgbColorSpace();
iccColorSpace.ColorComponents = 3;
PDFIccColor iccColor1 = new PDFIccColor(iccColorSpace);
iccColor1.ColorComponents = new double[] { 0.45, 0.1, 0.22 };
PDFIccColor iccColor2 = new PDFIccColor(iccColorSpace);
iccColor2.ColorComponents = new double[] { 0.21, 0.76, 0.31 };
PDFPen iccPen = new PDFPen(iccColor1, 4);
PDFBrush iccBrush = new PDFBrush(iccColor2);
page.Canvas.DrawRectangle(iccPen, iccBrush, 340, 475, 250, 100);
page.Canvas.DrawString("Separation", sectionFont, brush, 20, 590);
PDFExponentialFunction tintTransform = new PDFExponentialFunction();
tintTransform.Domain = new double[] { 0, 1 };
tintTransform.Range = new double[] { 0, 1, 0, 1, 0, 1, 0, 1 };
tintTransform.Exponent = 1;
tintTransform.C0 = new double[] { 0, 0, 0, 0 };
tintTransform.C1 = new double[] { 1, 0.5, 0, 0.1 };
PDFSeparationColorSpace separationColorSpace = new PDFSeparationColorSpace();
separationColorSpace.AlternateColorSpace = new PDFCmykColorSpace();
separationColorSpace.Colorant = "Custom Blue";
separationColorSpace.TintTransform = tintTransform;
PDFSeparationColor separationColor1 = new PDFSeparationColor(separationColorSpace);
separationColor1.Tint = 0.23;
PDFSeparationColor separationColor2 = new PDFSeparationColor(separationColorSpace);
separationColor2.Tint = 0.74;
PDFPen separationPen = new PDFPen(separationColor1, 4);
PDFBrush separationBrush = new PDFBrush(separationColor2);
page.Canvas.DrawRectangle(separationPen, separationBrush, 20, 605, 250, 100);
page.Canvas.DrawString("Pantone", sectionFont, brush, 340, 590);
PDFPen pantonePen = new PDFPen(PDFPantoneColor.ReflexBlue, 4);
PDFBrush pantoneBrush = new PDFBrush(PDFPantoneColor.RhodamineRed);
page.Canvas.DrawRectangle(pantonePen, pantoneBrush, 340, 605, 250, 100);
page.Canvas.CompressAndClose();
}
